2 * Theming - Initialization
4 * Copyright (c) 2005 by Frank Richter
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
30 #include "wine/debug.h"
32 WINE_DEFAULT_DEBUG_CHANNEL(theming);
34 typedef LRESULT (CALLBACK* THEMING_SUBCLASSPROC)(HWND, UINT, WPARAM, LPARAM,
37 extern LRESULT CALLBACK THEMING_ComboSubclassProc (HWND, UINT, WPARAM, LPARAM,
39 extern LRESULT CALLBACK THEMING_DialogSubclassProc (HWND, UINT, WPARAM, LPARAM,
41 extern LRESULT CALLBACK THEMING_EditSubclassProc (HWND, UINT, WPARAM, LPARAM,
43 extern LRESULT CALLBACK THEMING_ListBoxSubclassProc (HWND, UINT, WPARAM, LPARAM,
46 static const WCHAR dialogClass[] = {'#','3','2','7','7','0',0};
47 static const WCHAR comboLboxClass[] = {'C','o','m','b','o','L','b','o','x',0};
49 static const struct ThemingSubclass
51 const WCHAR* className;
52 THEMING_SUBCLASSPROC subclassProc;
54 /* Note: list must be sorted by class name */
55 {dialogClass, THEMING_DialogSubclassProc},
56 {WC_COMBOBOXW, THEMING_ComboSubclassProc},
57 {comboLboxClass, THEMING_ListBoxSubclassProc},
58 {WC_EDITW, THEMING_EditSubclassProc},
59 {WC_LISTBOXW, THEMING_ListBoxSubclassProc}
62 #define NUM_SUBCLASSES (sizeof(subclasses)/sizeof(subclasses[0]))
64 static WNDPROC originalProcs[NUM_SUBCLASSES];
65 static ATOM atRefDataProp;
66 static ATOM atSubclassProp;
68 /* Generate a number of subclass window procs.
69 * With a single proc alone, we can't really reliably find out the superclass,
70 * so have one for each subclass. The subclass number is also stored in a prop
71 * since it's needed by THEMING_CallOriginalClass(). Then, the the subclass
72 * proc and ref data are fetched and the proc called.
74 #define MAKE_SUBCLASS_PROC(N) \
75 static LRESULT CALLBACK subclass_proc ## N (HWND wnd, UINT msg, \
76 WPARAM wParam, LPARAM lParam) \
80 SetPropW (wnd, MAKEINTATOMW (atSubclassProp), (HANDLE)N); \
81 refData = (ULONG_PTR)GetPropW (wnd, MAKEINTATOMW (atRefDataProp)); \
82 TRACE ("%d; (%p, %x, %x, %lx, %lx)\n", N, wnd, msg, wParam, lParam, \
84 result = subclasses[N].subclassProc (wnd, msg, wParam, lParam, refData);\
85 TRACE ("result = %lx\n", result); \
95 static const WNDPROC subclassProcs[NUM_SUBCLASSES] = {
103 /***********************************************************************
106 * Register classes for standard controls that will shadow the system
109 void THEMING_Initialize (void)
112 static const WCHAR subclassPropName[] =
113 { 'C','C','3','2','T','h','e','m','i','n','g','S','u','b','C','l',0 };
114 static const WCHAR refDataPropName[] =
115 { 'C','C','3','2','T','h','e','m','i','n','g','D','a','t','a',0 };
117 if (!IsThemeActive()) return;
119 atSubclassProp = GlobalAddAtomW (subclassPropName);
120 atRefDataProp = GlobalAddAtomW (refDataPropName);
122 for (i = 0; i < NUM_SUBCLASSES; i++)
126 class.cbSize = sizeof(class);
127 class.style |= CS_GLOBALCLASS;
128 GetClassInfoExW (NULL, subclasses[i].className, &class);
129 originalProcs[i] = class.lpfnWndProc;
130 class.lpfnWndProc = subclassProcs[i];
132 if (!class.lpfnWndProc)
134 ERR("Missing proc for class %s\n",
135 debugstr_w (subclasses[i].className));
139 if (!RegisterClassExW (&class))
141 ERR("Could not re-register class %s: %lx\n",
142 debugstr_w (subclasses[i].className), GetLastError ());
146 TRACE("Re-registered class %s\n",
147 debugstr_w (subclasses[i].className));
152 /***********************************************************************
153 * THEMING_Uninitialize
155 * Unregister shadow classes for standard controls.
157 void THEMING_Uninitialize (void)
161 if (!atSubclassProp) return; /* not initialized */
163 for (i = 0; i < NUM_SUBCLASSES; i++)
165 UnregisterClassW (subclasses[i].className, NULL);
169 /***********************************************************************
170 * THEMING_CallOriginalClass
172 * Determines the original window proc and calls it.
174 LRESULT THEMING_CallOriginalClass (HWND wnd, UINT msg, WPARAM wParam, LPARAM lParam)
176 INT_PTR subclass = (INT_PTR)GetPropW (wnd, MAKEINTATOMW (atSubclassProp));
177 WNDPROC oldProc = originalProcs[subclass];
178 return CallWindowProcW (oldProc, wnd, msg, wParam, lParam);
181 /***********************************************************************
182 * THEMING_SetSubclassData
184 * Update the "refData" value of the subclassed window.
186 void THEMING_SetSubclassData (HWND wnd, ULONG_PTR refData)
188 SetPropW (wnd, MAKEINTATOMW (atRefDataProp), (HANDLE)refData);